Control box for model aeroplanes



Dec. 6, 1955 Filed Feb. 16, 1953 R. W. VINCENT CONTROL BOX FOR MODELAEROPLANES 2 Sheets-Sheet l 2: Robert W. Vincent INVENTOR.

BY WWW W fz W,

Dec. 6,1955 R, w. VINCENT 2,725,669

CONTROL BOX FOR MODEL AEROPLANES Filed Feb. 16, 1953 2 Sheets-Sheet 2 I/4 Q\zfi E 5 i l V E 26 Robert W. Vincent INVENTOR.

BY WWW United States Patent CONTROL BOX FOR MODEL AEROPLANES Robert W.Vincent, Chappell, Nebr.

Application February 16, 1953, Serial No. 336,991

1 Claim. (Cl. 46-77) This invention relates to an improved control meansfor model aeroplanes and relates more particularly to a controlapparatus which is grasped and held in the one hand and actuated by theother.

An object of this invention is to provide a control box for modelaeroplanes which embodies a simple yet eflicient system of levers andlinks for manipulating the control lines of a model aeroplane.

Another object of this invention is to provide a control apparatus formodel aeroplanes which includes an ac tuating lever operativelyconnected to a control link for actuating the latter to control andguide a model aeroplane during its flight.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

Figure l is a perspective view of the control apparatus showing itsexternal construction;

Figure 2 is an end view of the control apparatus, portions being brokenaway to show details of its internal construction;

Figure 3 is a vertical section taken substantially along the plane ofsection line 3--3 in Figure 1;

Figure 4 is a bottom plan view of the apparatus with the bottom wallremoved.

Referring now more particularly to the drawings, reference numeralindicates generally the control box or casing which includes side walls12, a forward end wall 14, a rearward end wall 16, a bottom wall 18, andthe top wall 20. An elongated handle assembly 22 has its forward end 24disposed within the casing and extends through a notch in the rear wall16 laterally therefrom and terminates at its other end in a hand gripportion 26 by means of which the control assembly may be held andcarried in one hand. As shown in Figure 4, a pair of screws 28 areprovided for securing the handle assembly to the rear wall 16 althoughit will be apparent that this particular matter of securement is notessential.

The casing itself is preferably secured together by means of countersunkscrews 30 at each corner to maintain its various component parts inassembled relation.

A pair of closely spaced guide blocks 32 are secured longitudinally onthe top 20 and are laterally ofiset from its longitudinal center line,as shown most clearly in Figures 1 and 2. An actuating lever 34 isfulcrumed between the guard blocks by pin 36 and presents a manuallyactuated upper end 38 and a depending lower end 40 which extendsdownwardly within the confines of the casing. A link 42 isintermediately pivoted to the for- 2,725,669 Patented Dec. 6, 1955 wardend of the handle assembly by the screw 44 and washer 46 shown in Figure2 and is provided at one side thereof with an aperture 48 for receivinga screw 50 secured in coextensive relation to the lower end of theactuating lever. Since the aperture 48 is substantially larger than theouter diameter of the screw 50, a washer 52 is disposed adjacent thescrew head to prevent its disengagement from the aperture.

The opposite ends of the link are apertured to receive the angulatedends 54 of the control rods 56 whose free ends terminate in loops 58.These control rods extend substantially perpendicularly from the controllever and extend outwardly of the casing through the slots 60 in frontwall 14.

In operation, the control rods are secured to the control wires of amodel aeroplane and, while the aeroplane is in flight, the actuatinglever 34 may be pivoted back and forth to manipulate the control rods ina push and pull relation to control the plane. During such manipulationof the aeroplane, the hand grip 26 is grasped by one hand of the userand the upper portion 38 of the actuating lever is manipulated with theother hand, as will be readily apparent. The loose engagement betweenthe screw 50 and aperture 48 prevents any binding action between theactuating lever and the control link, thus providing for easymanipulation of the controls.

The assembly may be formed of any suitable material but is preferred tobe constructed of wood or synthetic wood-like material to facilitateconstruction and maintain economical cost.

From the foregoing, the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary. However, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction shown and described, andaccordingly, all suitable modifications and equivalents may be resortedto, falling within the scope of the appended claim.

What is claimed as new is as follows:

A control apparatus for model aeroplanes comprising a casing having apair of spaced side walls, a bottom and a top, an elongated handlemember secured to said bottom and extending laterally of one side of thecasing to present a hand grip portion, a link pivotally securedintermediate its ends to said handle between said side walls, saidhandle holding said link above said bottom, an actuating lever pivotallysecured to said top along an axis normal to the pivotal connectionbetween said link and said handle and having a lower end disposed withinsaid casing and adjacent said link, means operatively connecting saidlever to said link, and control rods connected to the opposite ends ofsaid link for connection to the control wires of a model aeroplane forcontrolling the flight of the model aeroplane, said link being providedwith an aperture adjacent the lower end of said lever and spaced fromthe pivotal connection between said link and said handle, and a screwsecured to said lever loosely engaged within said aperture.

References Cited in the file of this patent UNITED STATES PATENTS2,061,953 Sampson Nov. 24, 1936 2,538,132 Taggert -p.-- Ian. 16, 19512,543,965 Hamilton Mar. 6, 1951

